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Finding the Fourth Proportional to 5,028.86, 6,939.86 and 3,040.74

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Solution

The fourth proportional to 5,028.86, 6,939.86 and 3,040.74 is: 4,196.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.86 : 6,939.86 = 3,040.74 : x
  2. Step 2: Convert to fraction form
    5,028.86/6,939.86 = 3,040.74/x
  3. Step 3: Cross multiply
    5,028.86x = 6,939.86 × 3,040.74
  4. Step 4: Simplify right side
    5,028.86x = 21,102,275.20
  5. Step 5: Solve for x
    x = 21,102,275.20/5,028.86
  6. Step 6: Final answer
    x = 4,196.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.